STRUCT DRM_VC4_WAIT_BO(9)

💖 struct drm_vc4_wait_bo(9) 💖

okay so bestie, welcome to the Kernel API Manual ✨ we're looking at struct drm_vc4_wait_bo(9) today and honestly? she's a small icon and she knows it 🎀

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🌸 NAME 🌸

struct drm_vc4_wait_bo — the ioctl argument for waiting for completion of the last DRM_VC4_SUBMIT_CL on a BO 💅

like, that's the whole vibe. you hand her this struct, she waits for the last DRM_VC4_SUBMIT_CL on that BO to be done. periodt.

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✨ SYNOPSIS ✨

struct drm_vc4_wait_bo {
    __u32 handle;
    __u32 pad;
    __u64 timeout_ns;
 };

no cap, that's the entire struct. three fields. she's lowkey minimal and honestly that's the aesthetic 🦋

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🎀 Members 🎀

the page lists a Members section but doesn't give any per-member blurbs here — so I'm not gonna make stuff up, bestie 😭 what you see in the synopsis above is what you get:

• __u32 handle
• __u32 pad
• __u64 timeout_ns

that's it. that's the roster. iykyk 🌈

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💜 Description 💜

so here's when this is actually useful: this is your go-to for cases where multiple processes might be rendering to a BO, and you want to wait for all rendering to be completed 🔥

like — not just one render finishing, the whole rendering situation being done. that's the assignment and she ate 💀✨

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🫶 SEE ALSO 🫶

• Kernel file ./include/uapi/drm/vc4_drm.h
• struct drm_vc4_submit_cl(9)
• struct drm_vc4_wait_seqno(9)
• struct drm_vc4_create_bo(9)
• struct drm_vc4_mmap_bo(9)
• struct drm_vc4_create_shader_bo(9)
• struct drm_vc4_label_bo(9)

go read the whole squad, they're all iconic 👑

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ngl bestie, this one's short and sweet — tiny struct, one clear job. main character energy in three fields 💅

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and that's the page!! sourced from ./include/uapi/drm, dated October 2026 📅 — mwah, ty for reading, love u, see u in the next manpage 🍓💖🧚